diff --git a/src/compiler/verifier.cc b/src/compiler/verifier.cc
index 25615ade55..c26103d1d7 100644
--- a/src/compiler/verifier.cc
+++ b/src/compiler/verifier.cc
@@ -2138,7 +2138,6 @@ void Verifier::VerifyNode(Node* node) {
   bool check_no_control = node->op()->ControlOutputCount() == 0;
   bool check_no_effect = node->op()->EffectOutputCount() == 0;
   bool check_no_frame_state = node->opcode() != IrOpcode::kFrameState;
-  int effect_edges = 0;
   if (check_no_effect || check_no_control) {
     for (Edge edge : node->use_edges()) {
       Node* const user = edge.from();
@@ -2147,7 +2146,6 @@ void Verifier::VerifyNode(Node* node) {
         DCHECK(!check_no_control);
       } else if (NodeProperties::IsEffectEdge(edge)) {
         DCHECK(!check_no_effect);
-        effect_edges++;
       } else if (NodeProperties::IsFrameStateEdge(edge)) {
         DCHECK(!check_no_frame_state);
       }
diff --git a/src/snapshot/read-only-deserializer.cc b/src/snapshot/read-only-deserializer.cc
index 9c2de5caca..a4ecf344ce 100644
--- a/src/snapshot/read-only-deserializer.cc
+++ b/src/snapshot/read-only-deserializer.cc
@@ -37,7 +37,7 @@ void ReadOnlyDeserializer::DeserializeIntoIsolate() {
     ro_heap->read_only_space()->RepairFreeSpacesAfterDeserialization();
 
     // Deserialize the Read-only Object Cache.
-    for (size_t i = 0;; ++i) {
+    for (;;) {
       Object* object = ro_heap->ExtendReadOnlyObjectCache();
       // During deserialization, the visitor populates the read-only object
       // cache and eventually terminates the cache with undefined.